Here is the full list of all 38 HELLDIVERS 2 achievements. It takes around 50-60 hours to unlock all of the achievements on Windows.
Upgrade all ship modules at least 1 level.
Complete a full Extreme difficulty Blitz mission and extract in under 6 minutes.
Be injured in all limbs at the same time.
Reach max level on one ship module.
Extract at least 15 rare samples from a mission as a team.
Have 6 orbital barrage stratagems in the same place at the same time.
Extract with at least 15 common samples.
Complete a full Hard difficulty mission or higher without anyone firing their primary or support weapon.
Complete at least 100 missions.
Kill 100 enemies using fire damage during the same mission.
While using a jump pack, knock yourself into a ragdoll state.
Shoot off both arms on a Hulk and then extract while it's alive.
Complete an Extreme difficulty mission or higher without anyone dying.
Provide assisted reload for a teammate.
Extract with a full team on a Hard difficulty or more mission.
Defeat a Hulk.
Play at least 50 missions.
Kill 5,000 enemies.
Kill a Charger with a resupply pod.
Complete 10 tactical objectives.
Extract after the timer reaches zero.
Kill a bug warrior with a shotgun within 1 meter.
Complete a Stalker Hive tactical objective.
Kill 25 enemies with one stratagem.
Play a planet defense mission.
Defeat a Bile Titan
Fire at least 150 rounds in one burst, killing at least 10 enemies.
Kill a target at a distance of over 100m.
Throw back a live grenade.
Play 1 Bot Mission.
Kill 150 enemies during the same mission.
Customize your Helldiver with new cape, armor, and helmet.
Fly at least 25 meters from the shockwave of an explosion.
Complete a mission but fail to extract.
Extract from a mission during nighttime.
Heal another player using stims.
Play 1 Bug Mission.
Complete Basic Training.